History is rife with cases of murder that remain unsolved even to this day.

Their stories ignite a more big curiosity in us, as their eerie mysteries are both intriguing

and terrifying.

Tells so macabre, you'd think they're made up, but alas, these blood curdling tales

are all real, which makes them all the more petrifying.

But I have a few here, at the very least, I'm sure you've never even heard of.

Here are the top five most mysterious unsolved deaths ever.

5.

The Murder of Betsy Ardsmaw

The case of Betty Ardsmaw remains one of the most haunting mysteries in the world of

true crime, and her story is a tale of an ordinary day-turned-tragic, leaving behind

a trail of questions unanswered and a mysterious killer at large.

On the fateful day of November 28, 1969, it was the Thanksgiving holiday.

Almost students were away, celebrating with their families.

Betsy, a dedicated graduate student at Penn State University, decided to stay and work

on our pending coursework.

But sometimes, not taking a break and being too dedicated, can lead to an enduring unsolved

mystery.

Her afternoon trip to the patty and paternal library on campus of all places would be

her last.

Witnesses were counted hearing the unexpected sound of books falling, and the silence

of the library the noise was startling, but what happened next turned a serene afternoon

...